Exodus 37:1-5

1And Bezaleel made the ark of shittim wood: two cubits and a half was the length of it, and a cubit and a half the breadth of it, and a cubit and a half the height of it:

2And he overlaid it with pure gold within and without, and made a crown of gold for it all around.

3And he cast for it four rings of gold, to be set by its four corners; even two rings upon its one side, and two rings upon its other side

4And he made staffs of shittim wood, and overlaid them with gold.

5And he put the staffs into the rings by the sides of the ark, to bear the ark.